The electron configuration for aluminum (Al) is shown below:

1s22s22p63s23p1

Which diagram shows the correct distribution of electrons in the electron shells of an aluminum atom?

A small orange dot is surrounded by 5 concentric circles. The inner ring has green dots at the north and south positions. The second ring has green dots at east and west. The third ring has six dots, at the north, northeast, southeast, south, southwest, and northwest. The fourth ring has dots at the north and south, and the outer ring has one dot at the west position.

A small orange dot is surrounded by two concentric circles. The inner circle has 6 green dots spaced approximately evenly across the circle. The outer circle has 7 dots, also approximately evenly spaced; none are aligned with dots in the inner circle.

An orange dot has 3 concentric circles surrounding it. The innermost circle has green dots at the north and south positions. The center circle has 8 dots spaced unevenly. The outer circle has three dots, spaced so that two are closer to each other than either is to the third.

An orange dot is surrounded by a concentric circle. 13 closely spaced green dots lie on that outer circle.

Answer:

Ar

Explanation:

Valence electrons in an atom or element play important role in making an element reactive or unreactive. Valence electrons are the electrons present in the outermost shell of the atom that participates in a chemical reaction and forms a chemical bond with other atoms. Elements having no valence electrons are stable and acts unreactive.

Argon or Ar is the unreactive element from the given elements because there are no valence in argon and all the three electrons shells are full. Electronic configuration of Ar is [Ne]3s23p6 which shows the stability of argon.

Hence, the correct answer is "Ar".

John Dalton contribute to the understanding of the atom that all matter was composed of atoms, indivisible and indestructible building blocks.

While all atoms of an element were identical, different elements had atoms of differing sizes and mass.

An atom is a particle of matter that uniquely defines a chemical element.

An atom consists of a central nucleus that is usually surrounded by one or more electrons.

Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.

Dalton based his theory on the law of conservation of mass and the law of constant composition.

The theory states that all matter is made of atoms, which are indivisible.

(1) All matter is composed of tiny, indivisible particles, called atoms, that cannot be destroyed or created.

(2) Each element has atoms that are identical to each other in all of their properties.

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Answer:

yes find the blanks of formulas ATM is equals to 2152 came that is also is a 1 ATM is that can come so much of money in that close to 52 ke and 22 4l

Answer:

C

Explanation:

Have anice day

This electron cloud model of aluminum has 3 energy levels with 3 electrons on its outer energy level. Thus option C is correct.

Electron cloud model is a type of model of an atom in which the atom consist of nucleus surrounded by a group of electrons. According to this model, the position of the electron at any given time is not known.

This model explains the zone of probability which describe the location of electron due to uncertainty principle. This model is described by Albert Einstein, Max Planck and Niels Bohr that electrons transmit energy and its properties that linked to light and energy.

The number of electrons in an electrically-neutral atom is the same as the number of protons in the nucleus. The total electrical charge of the nucleus is  +Ze, where e is the elementary charge equals to 1,602 x 10-19coulombs.

Every electron is influenced by the electric fields produced by the positive nuclear charge and have (Z – 1) negative electrons in the atom.

Thus option C is correct.

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Answer:

See explanation

Explanation:

1) A flight of stairs because there is a specific number of steps one may take at a particular time. That is, the number of steps that can be taken at a given time is not continuous.

2) The gear system of a car: The gear system of a car can only take whole number integer values. It is not continuous and only one level of gear can be attained at a given time.

The two analogies that I used to describe quantized change are;

- Notes on a Piano

- Digital Clock

Quantized change is simply means that the change is definite under certain restrictions such as the gears in our cars. This means that change comes in discreet amounts.

The 2 analogies that I can use to describe it are as follows;

1) Notes on a Piano; When we are turn on a piano, the notes on the piano are fixed and as such we can only play the notes that the keys can hit.

2) Digital clock; The representation of time in digital clocks is in terms of numbers which can be said to be discrete variables.

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Answer:

If there's a grass area in the shape of a square and one side is 8 metres how much would it cost to fill the grass with fresh gravel at $5/metre

Answer:

1

Explanation:

Asexual reproduction is the ability of an organism to produce offspring identical to themselves.

In asexual reproduction,  the number of parents is one, and the generation of offspring is genetically identical to a single parent. Therefore, row (1) best describes asexual reproduction.

Asexual reproduction can be described as a mode of reproduction in which a new offspring is generated by a single parent. The new individuals generated are genetically and physically identical to each of their parents. Asexual reproduction can be defined as the mode of reproduction in which the production takes place of offspring by a single parent.

Asexual reproduction can be observed in both multicellular and unicellular organisms. This process does not include gamete fusion and no change in the number of chromosomes either. Asexual reproduction will inherit the same genes as the parent.

Characteristics of Asexual Reproduction are single parent, no fertilization takes place, occurs in a very short time, and grows rapidly. The offspring in asexual reproduction is genetically similar.

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Answer:

Pie/Circle graph

Explanation:

Pie/Circle Graphs are best for demonstrating parts of a whole, especially with percents.

Answer:

the correct answer is D

Answer:

A)ff

Explanation:

its A bc, how you would write a dominate trait for having freckles is FF and how you would write a ressive(cant spell that word sorry) trait for having freckles is ff. if Andrew does not have freckles then he is a ressive, ff. and also my teacher told me that u always write a dominate trait before a ressive trait unless u r doing a tri hybrid cross or something else.

Answer:

Normally, it explains that matter cannot be created or destroyed. It demonstrates different chemical reactions that help show the different transformations of the matter but will never destroy it or create it.

The oil slick thick = 1.257 x 10⁻⁶ m

Volume is a derivative quantity derived from the length of the principal

The unit of volume can be expressed in liters or milliliters or cubic meters

The volume of the aquarium is almost the same as the beam namely:

V = length x width x height

1.06 quart = 1 L

1 quart = 0.943 L=0.943 x 10⁺³ m³

volume of oil = volume of swimming pool

0.943 x 10⁺³ m³ = 25 x 30 x h

[tex]\tt h=\dfrac{V}{A}\\\\h=\dfrac{0.943\times 10^{-3}~m^3}{25\times 30~m^2}\\\\h=1.257\times 10^{-6}~m[/tex]

Answer:

It is reevaluated

Explanation:

Because of this new evidence, the theory can change, so the scientists must reevaluate the theory

Answer:

it is ductile

Explanation:

because malleability is made into thin sheets

Answer: Many elements have one or more isotopes that are radioactive. These isotopes are called radioisotopes.

Answer:

Many elements have one or more isotopes that are radioactive. The isotopes are called radioisotopes

Answer:

Gas, Solid, or liquid

Explanation:

Answer:

Infrared radiation → A) used to detect the location of objects

Microwaves → D) Used in radar and to heat food

Ultraviolet light → C)Given off by very hot objects, such as the sun  Heat from warm objects

Visible light → B) All the radiation humans can see, ranging from red to violet

Explanation:

Microwaves have magnetic waves with very long lengths, greater than that of infrared light. These waves are produced through vibrations that produce heat, as the microwave is turned on, which allows the food to be heated. These waves are also used to provide communication on some types of devices.

Infrared radiation is a type of non-ionizing radiation that has a low frequency and therefore cannot be visualized, since it is not within a visible electromagnetic spectrum, having a frequency lower than red. It can be used to detect the licalization of objects and does not pose a health risk.

Ultraviolet radiation is extremely harmful to our body. It is characterized by radiation with very small wavelengths, less than 400nm. This type of radiation can be released by the sun and ultraviolet lamps.

Visible light refers to the simplest form of electromagnetic wave and covers all the radiation that our eyes can see, allowing different colors to be seen in the objects we observe according to the reorganization of atoms and molecules.

Answer:

A=Microwaves

B=Ultraviolet light

C=Visible light

D=Infared radiation

Explanation:

A) Used in radar and to heat food

B) Given off by very hot objects, such as the sun

C) All the radiation humans can see, ranging from red to violet

D) Heat from warm objects, used to detect the location of objects

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Answer:

it turns into a solid

Answer:

I have attached the diagram

Answer:

yes they are minerals becomes they contain components that have things minerals contians.

Explanation:

Answer/Explanation:

Animals are multicellular heterotrophic organisms, meaning they cannot generate their own food, they rely on external sources of nutrition.

Protists are any eukaryotic organism that cannot be classified as an animal, plant, or fungus. The grouping is more used for convenience than anything else.

Like animals, animal-like protists can move freely and are heterotrophic. However, unlike animals, they are usually unicellular, and much simpler than animals

Answer:

its b

Explanation:

Answer: the first box

Explanation:

Answer:

A hypothesis is a claim you make about what you think is going to happen in an experiment.

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Answer:

The fire sucks the match

Explanation:

It is peedo